EP0772185A3 - Verfahren und Vorrichtung zur Sprachdekodierung - Google Patents

Verfahren und Vorrichtung zur Sprachdekodierung Download PDF

Info

Publication number
EP0772185A3
EP0772185A3 EP96307725A EP96307725A EP0772185A3 EP 0772185 A3 EP0772185 A3 EP 0772185A3 EP 96307725 A EP96307725 A EP 96307725A EP 96307725 A EP96307725 A EP 96307725A EP 0772185 A3 EP0772185 A3 EP 0772185A3
Authority
EP
European Patent Office
Prior art keywords
orthogonal transform
coefficient data
transform unit
signal
transform coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP96307725A
Other languages
English (en)
French (fr)
Other versions
EP0772185A2 (de
Inventor
Jun Matsumoto
Masayuki Nishiguchi
Shiro Omori
Kazuyuki Iijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP0772185A2 publication Critical patent/EP0772185A2/de
Publication of EP0772185A3 publication Critical patent/EP0772185A3/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP96307725A 1995-10-26 1996-10-25 Verfahren und Vorrichtung zur Sprachdekodierung Ceased EP0772185A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP279409/95 1995-10-26
JP7279409A JPH09127995A (ja) 1995-10-26 1995-10-26 信号復号化方法及び信号復号化装置

Publications (2)

Publication Number Publication Date
EP0772185A2 EP0772185A2 (de) 1997-05-07
EP0772185A3 true EP0772185A3 (de) 1998-08-05

Family

ID=17610701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96307725A Ceased EP0772185A3 (de) 1995-10-26 1996-10-25 Verfahren und Vorrichtung zur Sprachdekodierung

Country Status (4)

Country Link
US (1) US5899966A (de)
EP (1) EP0772185A3 (de)
JP (1) JPH09127995A (de)
SG (1) SG43430A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3198996B2 (ja) * 1997-08-26 2001-08-13 日本電気株式会社 直交変換符号化画像の画像サイズ変換方法
JP3541680B2 (ja) 1998-06-15 2004-07-14 日本電気株式会社 音声音楽信号の符号化装置および復号装置
US6862298B1 (en) 2000-07-28 2005-03-01 Crystalvoice Communications, Inc. Adaptive jitter buffer for internet telephony
JP3555759B2 (ja) 2001-06-15 2004-08-18 ソニー株式会社 表示装置
EP2189978A1 (de) 2004-08-30 2010-05-26 QUALCOMM Incorporated Verfahren und Vorrichtung für einen adaptiven De-Jitter-Puffer
US8085678B2 (en) 2004-10-13 2011-12-27 Qualcomm Incorporated Media (voice) playback (de-jitter) buffer adjustments based on air interface
CN101061725B (zh) 2004-11-19 2010-08-11 松下电器产业株式会社 运动图像编码方法以及运动图像解码方法
US8355907B2 (en) 2005-03-11 2013-01-15 Qualcomm Incorporated Method and apparatus for phase matching frames in vocoders
US8155965B2 (en) * 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
JP2008263543A (ja) * 2007-04-13 2008-10-30 Funai Electric Co Ltd 記録再生装置
US8321222B2 (en) * 2007-08-14 2012-11-27 Nuance Communications, Inc. Synthesis by generation and concatenation of multi-form segments
JP4455633B2 (ja) * 2007-09-10 2010-04-21 株式会社東芝 基本周波数パターン生成装置、基本周波数パターン生成方法及びプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060321A (en) * 1979-10-01 1981-04-29 Hitachi Ltd Speech synthesizer
WO1993004467A1 (en) * 1991-08-22 1993-03-04 Georgia Tech Research Corporation Audio analysis/synthesis system
WO1995030983A1 (en) * 1994-05-04 1995-11-16 Georgia Tech Research Corporation Audio analysis/synthesis system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866777A (en) * 1984-11-09 1989-09-12 Alcatel Usa Corporation Apparatus for extracting features from a speech signal
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US4776014A (en) * 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US5179626A (en) * 1988-04-08 1993-01-12 At&T Bell Laboratories Harmonic speech coding arrangement where a set of parameters for a continuous magnitude spectrum is determined by a speech analyzer and the parameters are used by a synthesizer to determine a spectrum which is used to determine senusoids for synthesis
JPH0782359B2 (ja) * 1989-04-21 1995-09-06 三菱電機株式会社 音声符号化装置、音声復号化装置及び音声符号化・復号化装置
JP2689739B2 (ja) * 1990-03-01 1997-12-10 日本電気株式会社 秘話装置
US5687281A (en) * 1990-10-23 1997-11-11 Koninklijke Ptt Nederland N.V. Bark amplitude component coder for a sampled analog signal and decoder for the coded signal
NL9002308A (nl) * 1990-10-23 1992-05-18 Nederland Ptt Werkwijze voor het coderen en decoderen van een bemonsterd analoog signaal met een herhalend karakter en een inrichting voor het volgens deze werkwijze coderen en decoderen.
US5305421A (en) * 1991-08-28 1994-04-19 Itt Corporation Low bit rate speech coding system and compression
US5349549A (en) * 1991-09-30 1994-09-20 Sony Corporation Forward transform processing apparatus and inverse processing apparatus for modified discrete cosine transforms, and method of performing spectral and temporal analyses including simplified forward and inverse orthogonal transform processing
US5353374A (en) * 1992-10-19 1994-10-04 Loral Aerospace Corporation Low bit rate voice transmission for use in a noisy environment
FR2702590B1 (fr) * 1993-03-12 1995-04-28 Dominique Massaloux Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
US5504834A (en) * 1993-05-28 1996-04-02 Motrola, Inc. Pitch epoch synchronous linear predictive coding vocoder and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060321A (en) * 1979-10-01 1981-04-29 Hitachi Ltd Speech synthesizer
US4435832A (en) * 1979-10-01 1984-03-06 Hitachi, Ltd. Speech synthesizer having speech time stretch and compression functions
WO1993004467A1 (en) * 1991-08-22 1993-03-04 Georgia Tech Research Corporation Audio analysis/synthesis system
WO1995030983A1 (en) * 1994-05-04 1995-11-16 Georgia Tech Research Corporation Audio analysis/synthesis system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE INSPEC INSTITUTE OF ELECTRICAL ENGINEERS, STEVENAGE, GB; ANSARI R ET AL: "Pitch modification of speech using a low-sensitivity inverse filter approach", XP002066546 *
IEEE SIGNAL PROCESSING LETTERS, MARCH 1998, IEEE, USA, vol. 5, no. 3, ISSN 1070-9908, pages 60 - 62, XP002066570 *

Also Published As

Publication number Publication date
JPH09127995A (ja) 1997-05-16
US5899966A (en) 1999-05-04
EP0772185A2 (de) 1997-05-07
SG43430A1 (en) 1997-10-17

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